The battle for the strategic oilfields near Yenangaung took a dramatic turn on 16 April. The beleaguered troop of the 1st Burma Division and the 13th Indian Brigade found themselves encircled when the Japanese captured the village of Twingon and set up a roadblock over the Pin Chuang ford, a mile further north. With the arrival of the Chinese 38th Division, hopes were on the rise and a plan of attack was fomented calling for the 1st Burma to break out to the north while the Chinese reinforcements, supported by tanks of the 7th Armored Brigade and all available British guns, took on the roadblock.